package com.three.mapper;

import com.three.pojo.Student;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;

@Mapper
public interface StudentMapper {
    @Select("select * from student where id = #{id}")
    Student isExist(String id);
    int insert(Student student);
    Student select(Student student);
    int update(Student student);
}
